Driving method for plasma display panel

Abstract

Disclosed herein is an apparatus and method for driving a plasma display panel, wherein electromagnetic interference is minimized and stability is improved. According to the present invention, the apparatus for driving a PDP includes a plurality of scan electrodes and sustain electrodes, which are formed parallel to each other, and a scan driving unit for alternately supplying sustain pulses of the positive polarity and the negative polarity to the scan electrodes during a sustain period, wherein the sustain electrodes are connected to a ground voltage source, and thus always keep a ground voltage.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS [0001] This Nonprovisional application claims priority under 35 U.S.C. § 119(a) on Patent Application No. 10-2004-0015057 filed in Korea on Mar. 5, 2004, the entire contents of which are hereby incorporated by reference. FIELD OF THE INVENTION [0002] The present invention relates to an apparatus and method for driving a plasma display panel, and more particularly, to an apparatus and method for driving a plasma display panel, wherein electromagnetic interference is minimized and stability is improved. BACKGROUND OF THE RELATED ART [0003] A plasma display panel (hereinafter, referred to as a ‘PDP’) is adapted to display an image including characters or graphics by light-emitting phosphors with ultraviolet of 147 nm generated during the discharge of a gas such as He+Xe, Ne+Xe or He+Ne+Xe. This PDP can be easily made thin and large, and it can provide greatly increased image quality with the recent development of the relevant technology. Particu...

AI Technical Summary

Benefits of technology

[0024] Accordingly, the present invention has been made in view of the above problems occurring in the prior art, and it is an object of the present invention to provide an apparatus and method for driving a plasma display panel, wherein electromagnetic interference can be minimized and stability can be also improved.

[0035] In the present invention, since sustain electrodes always keep a ground voltage, introduction of external noise, generation of EMI, etc. can be minimized. Furthermore, in the present invention, sustain electrodes are always kept to a ground voltage, i.e., the flow path of current shortens. Due to this, generation of additional noise can be prevented, and the stability of a PDP can be thus secured.

Problems solved by technology

Accordingly, there is a problem in that high EMI is generated.

Furthermore, in the prior art, since lots of switching means (i.e., line is long) are needed in order for the scan electrodes Y and the sustain electrodes Z to be connected to the ground voltage GND, there is a problem in that additional noise is generated.

In the prior art, however, since a variety of driving waveforms are supplied to the scan electrodes Y and the sustain electrodes Z, it is difficult to secure the stability of a PDP.

As a result, there are problems in that the manufacture cost is increased, leakage current is generated, etc.

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